A database management capability for Ada

The data requirements of mission critical defense systems have been increasing dramatically. Command and control, intelligence, logistics, and even weapons systems are being required to integrate, process, and share ever increasing volumes of information. To meet this need, systems are now being specified that incorporate data base management subsystems for handling storage and retrieval of information. It is expected that a large number of the next generation of mission critical systems will contain embedded data base management systems. Since the use of Ada has been mandated for most of these systems, it is important to address the issues of providing data base management capabilities that can be closely coupled with Ada. A comprehensive distributed data base management project has been investigated. The key deliverables of this project are three closely related prototype systems implemented in Ada. These three systems are discussed

The Polonnaruwa meteorite: oxygen isotope, crystalline and biological composition

Results of X-Ray Diffraction (XRD) analysis, Triple Oxygen Isotope analysis and Scanning Electron Microscopic (SEM) studies are presented for stone fragments recovered from the North Central Province of Sri Lanka following a witnessed fireball event on 29 December 2012. The existence of numerous nitrogen depleted highly carbonaceous fossilized biological structures fused into the rock matrix is inconsistent with recent terrestrial contamination. Oxygen isotope results compare well with those of CI and CI-like chondrites but are inconsistent with the fulgurite hypothesis.Comment: 7 pages, 7 figures, 4 table

Mobile and embedded databases

Recent advances in device technology and connectivity have paved the way for next generation applications that are data-driven, where data can reside anywhere, can be accessed at any time, from any client. Also, advances in memory technology are increasing the capacities of RAM and Flash, and their costs down. These trends lead to applications that are mobile, embedded, and data-centric. This paper presents an overview of mobile and embedded database systems and applications. 1 The New Environment- Mobile and Embedded Recent advances in processors, memory, storage, and connectivity have paved the way for next generation applications that are data-driven, whose data can reside anywhere (i.e. on the server, desktop, devices, embedded in applications) and that support access from anywhere (i.e. local, remote, over the network, in connected and disconnected fashion). Memory sizes have gone up and prices have come down significantly; with 64 bit addressability, it is not uncommon to configure servers with 8 – 16GB of memory, and desktops with 2–4GBs of memory. With advances in flash memory technology, large flash drives are available at reasonable prices. Computers with 32 GB flash drives are making way into the market. Flash drives not only eliminate seek time and rotational latency they consume significantly less power than conventional disk drives, making them idea